Dell Inspiron 15R (5521, Late 2012) - Manual (Page 20)

Specifications
Views
System
Information
Memory
Ports and
Connectors
Dimensions and
Weight
Computer
Environment
Storage
Touchpad Power Adapter Camera
Communications
Battery
Video Audio
Display
Media-card
reader
Keyboard
Battery
Type • 4-cell “smart” lithium ion (40 WHr) — non-touch only
• 6-cell “smart” lithium ion (65 WHr)
Dimensions: 4-cell 6-cell
Height (touch) N/A 1.08 in (27.4 mm)
Height (non touch) 0.79 in (20 mm) 0.98 in (24.9 mm)
Width 10.72 in (272.40 mm) 10.72 in (272.40 mm)
Depth 1.94 in (49.30 mm) 1.94 in (49.3 mm)
Weight (maximum) 0.57 lb (0.26 kg) 0.79 lb (0.36 kg)
Voltage 14.80 VDC 11.10 VDC
Operating time Varies depending on operating conditions and can significantly reduce under certain
power-intensive conditions.
Life span (approximate) 300 discharge/charge cycles
Temperature range:
Operating 0 °C to 35 °C (32 °F to 95 °F)
Storage –40 °C to 65 °C (–40 °F to 149 °F)
Coin-cell battery CR-2032